The dev team went out "into the field" to help roll out the software to the company. This also allowed us to see how others used the software.
At the end of the day, one of the devs reported back that one personal assistant would maximize the email app's window (back when 17" CRT monitors were large) and after each email was processed, she'd print out the email and file it the appropriate spot in a filing cabinet.
All the devs were, "But... But... she can just file the email in an email folder in the program. Why does she need hardcopy? Email was supposed to save trees!"
Old habits take a while to change. Managers and executives were used to reports and memos on paper. So when email arrived, it was very common for secretaries to print emails for their bosses to read. Even at one of my early jobs in the 1990s, changes deployed to production had to be documented in memo form, and a copy of the memo printed, along with diffs of the code changes, and filed in a filing cabinet.
We got there eventually. I'd say that for all but the oldest generation still working, printing any kind of document to hardcopy has become pretty rare, at least where I'm working.